PREPARATION FOR USE
1-22. This section contains or references all procedures necessary to prepare the power amplifier for use.
AS A COMPONENT RADIO SET AN/M RC-138
1-24. The procedures applicable to the power amplifier as a component of radio set AN/MRC-138 (GRC-
193 components rack-mounted in an M151A2 vehicle) are given in the System Manual,
AS A SEPARATE COMPONENT
1-26. Subsequent paragraphs 1-27 through 1-47 describe handling, unloading, unpacking and installation
procedures for the power amplifier as a separate component.
1-27. HANDLING DURING UNLOADING
1-28. The unit is shipped in a single crate. The approximate shipping weight of the equipment and crate
is 63 pounds. No special procedures are required for handling. However, since the equipment is made up
of accurately calibrated precision components, rough handling should be avoided.
1-30. Caution should be taken when uncrating the unit to prevent damage to the controls, indicators and
connectors. It is advisable to save and store the power amplifier crating material for possible reshipment or
relocation at a later time. Consequently, careful uncrating of the unit is suggested. Store crating material
in a dry area. No other special uncrating procedures apply.
1-32. Unpack the power amplifier as follows:
Remove the inner box containing the power amplifier from the crating insulation material and
place it on a flat working surface.
2. If power amplifier Mount MT-4497/GRC- 193 (RF Part No. 755017A90 15) and mating connectors
(refer to table 1-3) were received, unpack them and place them on a flat work surface.
3. Carefully remove packing material from power amplifier. Do not remove plastic caps from J 1
ANT CPLR CONT, J2 RT CONT, J3 DC PWR; J4 ANT CPLR RF, and J5 RT RF connectors until the
power amplifier is ready for installation.
4. If mating connectors were purchased, tag and identify the components (refer to table 1-3).
AS A COMPONENT
OF RADIO SET AN/MRC-138
1-34. Installation procedures applicable to Power Amplifier AM-6545/GRC-l 93 as a component of radio
set AN/MRC-l38 AN/GRC-l 93 components rack-mounted in a M151A2 jeep vehicle) are given in System
Manual, TM 11-5820-924-12.